07-27-2019
Control B in standard ASCII (STX) is decimal 02 or ^B according to the list of ASCII values. Not a smiley face.
Windows has different keyboard setups from UNIX. In UNIX they are called locales. What you see is standard, the Windows smiley or whatever is Windows only, for what you are doing.
I am assuming you are telnet to another unix box. If not, what you see when you type on a UNIX machine can be different in a DOS window. Telnet also responds to some keystrokes as well instead of just printing them. Be careful. Read your man page for telnet to see what keystrokes (or combinations) have meaning.
One way to get around this:
To get colors and other effects requires that the both terminals in the conversation use ANSI escape sequences:
Codes:
ansi codes
Getting terminal to work for you:
ANSI escape code - Wikipedia
Last edited by jim mcnamara; 07-27-2019 at 07:42 PM..
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tr(1B) SunOS/BSD Compatibility Package Commands tr(1B)
NAME
tr - translate characters
SYNOPSIS
/usr/ucb/tr [-cds] [ string1 [string2]]
DESCRIPTION
The tr utility copies the standard input to the standard output with substitution or deletion of selected characters. The arguments string1
and string2 are considered sets of characters. Any input character found in string1 is mapped into the character in the corresponding posi-
tion within string2. When string2 is short, it is padded to the length of string1 by duplicating its last character.
In either string the notation:
a-b
denotes a range of characters from a to b in increasing ASCII order. The character , followed by 1, 2 or 3 octal digits stands for the
character whose ASCII code is given by those digits. As with the shell, the escape character , followed by any other character, escapes
any special meaning for that character.
OPTIONS
Any combination of the options -c, -d, or -s may be used:
-c Complement the set of characters in string1 with respect to the universe of characters whose ASCII codes are 01 through 0377
octal.
-d Delete all input characters in string1.
-s Squeeze all strings of repeated output characters that are in string2 to single characters.
EXAMPLES
Example 1: Creating a list of all the words in a filename
The following example creates a list of all the words in filename1, one per line, in filename2, where a word is taken to be a maximal
string of alphabetics. The second string is quoted to protect `' from the shell. 012 is the ASCII code for NEWLINE.
example% tr -cs A-Za-z '